Dr. Robert W Hamilton , MD
Internal Medicine • Hershey, PA
739 Fishburn Rd
Hershey, PA 170332012
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Dr. Robert Hamilton is listed in NPPES under Internal Medicine.
-
NPI assigned on October 18, 2006; this date does not establish years in practice.
-
Published CMS data list 510 Original Medicare Part B services in 2017.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017. Published rows only; this is not a quality measure.
-
Published Part B service records, 2017:
- 99214 — Established patient outpatient office visit: 225 service units.
- 36415 — Insertion of needle into vein for collection of blood sample: 167 service units.
- 99215 — Established patient outpatient office visit: 79 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2016 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2017). CPT notice
See all 4 records in the table · Guide: How to read Medicare Part B data
-
Published CMS data list 89 Medicare Part D prescriptions, including refills, in 2018.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2018. Published rows only; this is not a quality measure.
-
Published Part D records, 2018:
- Amlodipine Besylate — 21 prescription fills, including refills.
- Atorvastatin Calcium — 18 prescription fills, including refills.
- Simvastatin — 14 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2018. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table · Guide: How to read Medicare Part D prescriber data
-
Medicare Part D prescriptions went from 4,898 in 2014 to 89 in 2018.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2014–2018.
Practice Location & Contact Primary Location
739 Fishburn Rd
Hershey, PA 170332012
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $35,500 in 2017
The total amount Medicare approved for these services in 2017. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017.
Paid by Medicare
About $20,963 in 2017
The part of the Medicare-allowed amount that Medicare itself paid in 2017, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017.
30-day fills
217 standardized 30-day fills in 2018
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$5,636 in 2018
The total cost of these prescriptions in 2018, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2018.
Open Payments general payments, program year 2022
All general payments: $33.85 across 2 records.
By nature of payment
- Food and Beverage: $33.85 across 2 records.
Reporting-company totals
- ABBVIE INC.: $33.85 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2022 (published June 30, 2026).
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Hershey and Pennsylvania
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Hamilton are from 2017.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Hamilton are from 2018.
124 active clinicians are listed under Internal Medicine with a practice address in Hershey, PA (7,304 in Pennsylvania).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Hershey
19.4% of these 124 clinicians have the CMS telehealth indicator.
67.7% of these 124 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Medicare Part B services
CMS data for Medicare Part B services are available for 2017 only.
-
Medicare-allowed amount
CMS data for Medicare-allowed amount are available for 2017 only.
-
Paid by Medicare
CMS data for Medicare payment amount are available for 2017 only.
-
Medicare Part D prescriptions
Medicare Part D prescriptions decreased 98% from 4,898 in 2014 to 89 in 2018.
- 2014: 4,898
- 2015: 4,917
- 2016: 4,831
- 2017: 3,560
- 2018: 89
-
30-day fills
30-day fills decreased 98% from 9,042 in 2014 to 217 in 2018.
- 2014: 9,042
- 2015: 9,213
- 2016: 9,200
- 2017: 7,024
- 2018: 217
-
Part D drug cost
Part D drug cost decreased 98% from $301,844 in 2014 to $5,636 in 2018.
- 2014: $301,844
- 2015: $301,625
- 2016: $264,373
- 2017: $307,130
- 2018: $5,636
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $11.21 in 2021 to $33.85 in 2022.
- 2021: $11.21
- 2022: $33.85
Sources: CMS Medicare Physician & Other Practitioners (2017), CMS Medicare Part D Prescribers (2018), CMS Open Payments (2022), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2022 (payments made January 1 – December 31, 2022): fewer than 11 records totaling $33.85.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
VRAYLAR | General | $20.89 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
VRAYLAR | General | $12.96 |
Source: CMS Open Payments, program year 2022, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
225 | 106 | $119.00 | $97.74 |
|
36415
Insertion of needle into vein for collection of blood sample
|
167 | 104 | $15.07 | $2.94 |
|
99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
79 | 76 | $165.00 | $131.89 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
39 | 33 | $85.00 | $66.61 |
Source: CMS Part B by Provider and Service, 2017; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2018.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amlodipine Besylate | Amlodipine Besylate | 21 | 1,890 | $192.94 | 14 |
| Atorvastatin Calcium | Atorvastatin Calcium | 18 | 1,504 | $353.55 | 14 |
| Simvastatin | Simvastatin | 14 | 900 | $120.92 | — |
| Hydrochlorothiazide | Hydrochlorothiazide | 14 | 1,020 | $102.17 | — |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 11 | 165 | $4,288.22 | — |
| Metoprolol Succinate | Metoprolol Succinate | 11 | 868 | $577.83 | — |
Source: CMS Part D by Provider and Drug, 2018; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 207RH0000X
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.
Additional State Medicaid & Healthcare Payer Identifiers
Career & Practice History
NPI enumerated October 18, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Hershey
- Dr. Manpreet Singh, MD
- Dr. Paul Haidet, MD
- Dr. Julie Machado, MD
- Dr. Christine Kreider, MD, MPH
- Dr. Christopher Benson, MD
- Dr. Rebecca Roller, MD
Mailing Address
739 Fishburn Rd
Hershey, PA 170332012
Phone: 7175331819